At 07:39 -0600 on 01/27/2012, Staller, Allan wrote about Re:
different tape media for ML2 copies in HSM:
Look up the TAPECOPY command in the dfSMS/hsm Storage Admin Guide..
http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/DGT2S680/2.40
?SHELF=DGT2BK90&DT=20090610113354
HTH,
<snip>
Currently we are creating duplex tape copies for ML2 in HSM. We are
using logical tape (VTS), and we used to use Export to get the second
copies offsite. However, 2 years ago we stopped all Export/Import
functions, and now have the two copies always in the library(which is
bad).
My job now, is to find a way to be able to send the second copy offsite
by using native 3590 tape. I was researching, and I am 99% sure that I
cannot use different media - logical tape for onsite and native 3590 for
offsite - for the ML2 tapes. I was told to turn the 99% into 100%.
So here is my question:
Is there any way to use different media for the two ML2 tapes? A patch
maybe?
Logically thinking, since the 3590 is larger we would never have issues
with
filling up the second tape, but then have partial filled 3590 tapes
offsite.
I wonder if parameters like the TAPEUTILIZATION and the
RECYCLEPERCENT are the reason why we can't mix the media.
</snip>
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Just to play Devil's Advocate here - What the OP asked for was a way
to create two ML2 tapes on different media at the time of the
creation of the ML2 tapes/files. No one has addressed this
requirement and said it is not possible. All the responses/solutions
are offering two step means of getting the same result. First create
the ML2 files/tapes and THEN copy one to physical 3590 volumes. IOW:
None of the solutions create the ML2 tape but only copy one that has
already been created to make a physical duplicate for transfer
offsite. I know that the ultimate result is the same (so long as
there is some way of telling HSM about the volumes) but I just wanted
to point out the omission in the responses (ie: Jumping directly to
another solution without noting that the original requested method is
not possible).
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